Sony KDL-40S2000; on 10 min then 4 blinks

[stepka]

I picked up this tv from a co-worker for $25 in hopes for a cheap and easy fix, or it's gonna be a parts tv. My co-worker said that it started acting up after a storm. It will power up and run fine for about 10 minutes then the screen wil flicker a few times and then shut off and blink 4 times. It will start up again after 30 min of being unplugged. I have searched all of Google and nothing "easy" has worked, so it's time to dig deep.

[stepka]

Re: Sony KDL-40S2000; on 10 min then 4 blinks

Power Supply

[stepka]

Re: Sony KDL-40S2000; on 10 min then 4 blinks

Inverter boards

[stepka]

Re: Sony KDL-40S2000; on 10 min then 4 blinks

Any ideas?

[newtothis]

Re: Sony KDL-40S2000; on 10 min then 4 blinks

Ok next to the connectors on the Power Supply you will see voltage labels... For each connecter test each pin using your meter set to 20VDC - Black to chassis and Red to the pin. You want to do this when the set is switched on and the LED flashing after it shuts off.

List the label and reading you get like this for EG :

Connector 1
Pin 1 - STBY - 5v
Pin 2 - 12v - 0v
etc
etc

Connector 2
Pin 1 - etc
etc

[stepka]

Re: Sony KDL-40S2000; on 10 min then 4 blinks

Well, this is weird! After reinstalling the inverter boards and power supply its working fine. Its been on and off for more than 3 hours with no issues. If it start acting up again I will bump this post.